我想比较两个日期和时间，我想要所有结果 from tbl where date1 > date2

Select * From temp where mydate > '2009-06-29 04:00:44';

但这只是比较日期而不是时间。它给了我今天日期的所有结果集

'2009-06-29 11:08:57'
'2009-06-29 11:14:35'
'2009-06-29 11:12:38'
'2009-06-29 11:37:48'
'2009-06-29 11:52:17'
'2009-06-29 12:12:50'
'2009-06-29 12:13:38'
'2009-06-29 12:19:24'
'2009-06-29 12:27:25'
'2009-06-29 12:28:49'
'2009-06-29 12:35:54'
'2009-06-29 12:36:54'
'2009-06-29 12:49:57'
'2009-06-29 12:58:04'
'2009-06-29 04:13:20'
'2009-06-29 04:56:19'
'2009-06-29 05:00:23'
'2009-06-29 05:04:26'
'2009-06-29 05:08:17'
'2009-06-29 05:26:57'
'2009-06-29 05:29:06'
'2009-06-29 05:32:11'
'2009-06-29 05:52:07'

提前致谢！